"fictional theory" is a correct and usable phrase in written English.
You can use it when you want to refer to a hypothetical idea or concept, especially one that is used for the purpose of academic or intellectual discussion. For example, "In this essay I will explore a fictional theory about the origins of language."
And that although he himself had no interest in Jack the Ripper, he did have an interest in the fact that the Whitechapel murders are still a magnet for conspiracy theorists of all persuasions, and he fancied starting his own fictional theory that Henry James was responsible.
The 5 o'clock wave is a fictional theory on the reasons for Wagga Wagga's sporting success.
"The CRS report today just provides the final nail in the coffin of a fictional theory," he added.
It has been only in comparatively recent times that the novel has been taken sufficiently seriously by critics for the generation of aesthetic appraisal and the formulation of fictional theories.
He proposes what he calls the fictional immersion theory of dreaming (103 4), according to which dreams are like fictions where we become so deeply engaged that we 'lose ourselves' and thereby form (admittedly atypical) beliefs.
The writer then concots a fictional alien-abduction theory to explain the reasons for President Clinton's sexual affair with former White House intern Monica Lewinsky.
One way to account for the nonexistence datum is the possibilist theory of fictional entities, which holds that fictional entities do not exist in the actual world but only in some other possible worlds.
We should remember, however, that this debate is internal to neo-Meinongianism, and that neo-Meinongianism as a theory of fictional objects has important virtues that owe nothing to the outcome of this debate.
According to Parsons' theory, a fictional object x which originates in a certain story is the object that has exactly the nuclear properties F such that according to the story, Fx (Parsons 1980: 49 60, 228 23).
Mathematical theories describe fictional entities, in the same way that literary fiction describes fictional characters.
But one comic creation has made an unlikely return to the (computer) screen: Nigel Tufnel, lead guitarist with Spinal Tap, has made a series of films for National Geographic, unveiling the fictional rocker's unusual theories about Stonehenge.
